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%I #6 Mar 31 2012 12:36:22
%S 1,7,43,268,1740,11862,85013,639760,5045610,41615165,358185399,
%T 3210667490,29914284833,289187621900,2895861006415
%N Number of lower triangles of a (2n-1)X(2n-1) 0..n array with new values introduced in row major order 0..n and no element unequal to more than one horizontal or vertical neighbor
%C Row 1 of A194778
%e All solutions for n=2 containing a 2
%e ..0
%e ..1.1
%e ..1.1.2
%K nonn
%O 1,2
%A _R. H. Hardin_ Sep 02 2011
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